Help ASAP PLZ!! I will give brainlist to the first right person.
...
Answers: 3
Physics, 22.06.2019 00:50
Acave rescue team lifts an injured spelunker directly upward and out of a sinkhole by means of a motor-driven cable. the lift is performed in three stages, each requiring a vertical distance of 10.0 m: (a) the initially stationary spelunker is accelerated to a speed of 4.90 m/s; (b) he is then lifted at the constant speed of 4.90 m/s; (c) finally he is decelerated to zero speed. how much work is done on the 68.0 kg rescue by the force lifting him during each stage?
Answers: 1
Physics, 22.06.2019 01:30
Which explanation describes the forces involved for a person to walk down the sidewalk? a. the person's feet push backward on the sidewalk; the sidewalk pushes backward on the person. b. the person's feet push forward on the sidewalk; the sidewalk does not push on the person. c. the person's feet push backward on the sidewalk; the sidewalk pushes forward on the person. d. the person's feet push forward on the sidewalk; the sidewalk pushes forward on the person.
Answers: 1
Physics, 22.06.2019 05:10
Waves are used in many practical applications to support work, entertainment, and health. one example is the use of ultrasound imaging to safely track the development of a growing fetus. what is a specific example of a practical application of waves in medicine, entertainment, safety, or other fields? provide a brief explanation of how the properties of waves are useful to that application.
Answers: 3
Physics, 22.06.2019 09:00
What changes occur in the brain during the teenage years? 25 points, someone me out!a.) thinking becomes slower as the brain grows larger. b.) connections between neurons become stronger and faster. c.) unused neurons fuse together to form larger, better functioning neurons. d.) more neurons are developed.
Answers: 2
Biology, 18.07.2019 12:00
Biology, 18.07.2019 12:00
Social Studies, 18.07.2019 12:00
Biology, 18.07.2019 12:00
Biology, 18.07.2019 12:00
Computers and Technology, 18.07.2019 12:00
Chemistry, 18.07.2019 12:00
Social Studies, 18.07.2019 12:00
Mathematics, 18.07.2019 12:00
Social Studies, 18.07.2019 12:00
Biology, 18.07.2019 12:00
Biology, 18.07.2019 12:00
History, 18.07.2019 12:00
Computers and Technology, 18.07.2019 12:00
Computers and Technology, 18.07.2019 12:00